Product Description

The Cell-Free DNA Preservation Tube is a direct-draw blood collection tube specifically designed to stabilize cell-free DNA (cfDNA) in whole blood at room temperature. Its proprietary, formaldehyde-free additive immediately prevents cell lysis and nuclease activity, effectively inhibiting the release of contaminating genomic DNA (gDNA) from nucleated blood cells. This ensures that the original cfDNA profile – both in concentration and integrity – is preserved from venipuncture all the way to downstream analysis.

By removing the need for immediate plasma separation and cold-chain transport, the tube simplifies complex pre-analytical workflows in liquid biopsy, non-invasive prenatal testing (NIPT), oncology research, and transplant monitoring. Whether samples are processed within hours or after days at ambient temperature, you obtain high-quality cfDNA that faithfully represents the in vivo circulating nucleic acid population.

Key Features & Benefits

Swabs For Bucal And Saliva Sample Collection

Description
Features and Benefits
iClean Swabs are manufactured with an absorbent material that increases buccal cell concentrations togive high quality results
Compatible with standard STR amplification chemistry.
iClean Swab collection swabs are individually packaged in a clean-room environment and sterilized by
gamma irradiation.
General description
Sterile collection swabs with ejectable brush-like head used for buccal and saliva samples and convenientDNA extraction.
Other Notes
Field of Use : For internal research use only

We offer a variety of oral swabs made from different materials, including fiber absorbent materials, flocked materials, polyester fiber materials, nylon materials, and sponge materials. New and existing customers are welcome to customize and inquire about our products. Our factory is located in beautiful Shenzhen, China, and we are fully qualified to supply oral sampling swabs globally. Our products are primarily used in genomics, scientific research, oral cell collection, and DNA collection.

The Unseen Battlefield, The Visible Guard

In healthcare safety, food hygiene, environmental monitoring, and industrial quality control, microbial contamination on object surfaces is a hidden source of risk. An inadequate surface sampling process may lead to distorted test results, potentially causing infection outbreaks, product recalls, or quality complaints. Traditional methods like swabbing often face challenges such as inconsistent sampling areas, cumbersome operations, susceptibility to cross-contamination, and poor data comparability, making it difficult to meet modern high-standard quality control demands.

Now, you need a more reliable “risk scout.” Huachenyang Surface Samplers are designed to meet these needs, redefining surface sampling standards with professionalism, precision, and efficiency. We transform invisible microbial threats into trustworthy quantitative data, building the first line of defense for your safety and quality.

＋86-755-2739 3226 info@chenyanglobal.com

Email us

Whatsapp

Request Quote

Why Choose Huachenyang Sponge Stick?

1. Core Technology: Innovative Principles for Precision

• Quantitative Sampling Technology: Utilizing unique film-press methods to ensure consistent sampling area and pressure, enabling true “quantitative” collection and guaranteeing data accuracy and comparability.
• Cross-Contamination-Free Design: Individually sterile-packed sampling heads, ready to use. Integrated structure or specialized detachment design prevents direct contact between operators and samples, eliminating secondary contamination and ensuring reliable test results.
• High Recovery Sampling Heads: Made from medical-grade sponge material, the sampling heads fit snugly against surfaces, enabling efficient elution or direct cultivation. This significantly improves microbial capture rates, leaving no potential risk undetected.

2. User Experience: Simplified Design for Frontline Efficiency

• One-Touch Operation: User-friendly design simplifies the process to “press-sample-retrieve” steps, minimizing the risk of operational errors.
• Lightweight and Portable: Compact, ergonomic design with lightweight construction allows easy mobile sampling in workshops, hospital wards, labs, and other settings, reducing operational burden.
• Quick Mastery: Minimal training required—staff can perform standardized sampling independently after brief instruction, enhancing team efficiency and reducing labor costs.
• Adaptability to Various Surfaces: Effective on smooth metals, rough plastics, moist cutting boards, and more, ensuring representative samples across diverse materials.

3. Performance Assurance: Reliability You Can Trust

• Exceptional Accuracy: Sampling error strictly controlled within ≤5%, with high sample integrity, providing a solid foundation for quality control and trend analysis.
• Regulatory Compliance: Design and performance fully meet authoritative international standards, facilitating smooth audits and certifications.
• Environmental Resilience: Durable materials and sealed construction ensure stable performance in complex environments like cleanrooms, cold storage, and humid conditions, guaranteeing continuous sampling and data stability.

4. Scenario Adaptability: Broad Applications for Industry Needs

• Healthcare and Infection Control: Rapidly assess the cleanliness of high-touch surfaces like beds, medical devices, and doorknobs, providing critical data for infection prevention.
• Food, Beverage, and Catering: Monitor production lines, worktables, and tools to validate HACCP system effectiveness and safeguard food safety.
• Pharmaceuticals and Cosmetics: Meet GMP/ISO 22716 requirements for surface microbial monitoring in cleanrooms and filling lines, ensuring product quality.
• Public Spaces and Disease Control: Ideal for hygiene inspections and outbreak tracing in schools, hotels, public transport, and other areas, supporting public health decisions.
• R&D Laboratories: Provide standardized surface samples for testing antibacterial materials, validating disinfectant efficacy, and other research applications.

Tangible User Benefits: From Features to Value

• Cross-Contamination-Free Design means more reliable test results, avoiding misjudgments and resource waste due to sample contamination.
• Lightweight Portability and One-Touch Operation translate to higher on-site sampling efficiency and reduced training costs.
• Exceptional Accuracy and Regulatory Compliance ensure credible quality control data and smoother audit experiences.
• Broad Scenario Adaptability offers versatility, maximizing ROI and effortlessly meeting multi-scenario, multi-standard testing needs.

Huachenyang is committed to delivering high-quality monitoring solutions for the industry. With CE certification, FDA registration, and service to hundreds of organizations in healthcare and food sectors, we have accumulated extensive practical experience and a solid reputation.

Surface risks leave no place to hide—starting with a single precise sampling. Choosing Huachenyang means choosing peace of mind, efficiency, and professionalism.

Foam Tipped IPA Clean Swab

This term refers to a highly specialized type of single-use cleaning tool designed for critical environments.

1. Breakdown of the Term
   Foam Tipped: The swab has a head made of a porous, absorbent foam material (often polyurethane or a similar polymer). This is chosen for its ability to hold liquid, apply it evenly without dripping, and gently wipe surfaces without scratching.

IPA: Stands for Isopropyl Alcohol, a very common and effective solvent, disinfectant, and cleaning agent. It evaporates quickly and leaves no residue, which is crucial for sensitive applications. Concentrations are typically 70% IPA/30% water for optimal disinfecting efficacy, but can vary (e.g., 99% for fast drying).

Clean Swab / Cleaning Swab: This indicates the swab is manufactured, packaged, and sold in a way to ensure it is itself clean and non-contaminating. They are often sterilized (e.g., by Gamma irradiation or ETO gas) and packaged in individual pouches or clamshells to maintain cleanliness until use.

2. Primary Purpose and Key Features
   The core purpose of this swab is to precisely clean, disinfect, and apply or remove solvents in situations where contamination, lint, or scratches are unacceptable.

Key Features:

Low Lint & Non-Abrasive: The foam is designed not to shed particles or fibers that could contaminate sensitive components.

High Purity: The materials are chosen to be chemically compatible and not leave behind ionic or other chemical residues.

Solvent-Compatible: The foam and stem (often polypropylene or another plastic) are resistant to dissolving or degrading when used with IPA and other solvents.

Precise Application: The foam tip allows for controlled application of solvent to a specific area without flooding it.

3. Common Applications
   These swabs are essential tools in industries where microscopic contamination can cause failure:

Electronics Manufacturing & Repair: Cleaning flux residues from circuit boards, precise application of solvent for rework, cleaning optical lenses (e.g., in cameras, sensors), cleaning contacts, and preparing surfaces for conformal coating.

Medical Device & Pharmaceutical Manufacturing: disinfecting and cleaning critical components before assembly, wiping down surfaces in cleanrooms, and maintaining laboratory equipment.

Aerospace & Automotive (Electronics): Cleaning sensitive sensors, connectors, and other electronic components during manufacturing and maintenance.

Telecommunications: Cleaning fiber optic connectors and laser components where even microscopic dust can disrupt signals.

Laboratory Research: Handling and cleaning sensitive samples and instrumentation.

4. How to Use It Correctly
   Don PPE: Wear appropriate personal protective equipment (PPE) like nitrile gloves and safety glasses, as IPA can be irritating to skin and eyes.

Open Package: Tear open the protective pouch, taking care not to touch the foam tip to any non-sterile surface.

Apply Solvent (if not pre-saturated): If using a dry swab, gently pour a small amount of IPA onto the foam tip. Avoid oversaturating it.

Clean/Gently Wipe: Wipe the target surface with the saturated foam tip using a gentle, non-abrasive motion. Use a rolling motion to present a clean side of the foam as it gets dirty.

Discard Immediately: Use the swab only once and then discard it properly. Never re-dip a used swab into a clean solvent bottle, as this will contaminate the entire bottle.

Allow to Dry: Let the IPA evaporate completely from the cleaned surface.

5. Important Safety Notes
   Flammable: Isopropyl Alcohol is highly flammable. Use only in well-ventilated areas away from any ignition sources (sparks, open flames, hot surfaces).

Volatile: It evaporates quickly, and inhalation of vapors should be minimized.

Skin Irritant: Prolonged contact can dry out and irritate the skin.

• Product Detail
• ItemPuritan 5″ Sterile Large Round Foam Swab w/Polypropylene Handle
• Company Huachenyang mfanufacturer
• Price
• Quantity10/50/1: 10 boxes of 50 individually wrapped swabs = 500/cs
• ApplicationsForensic Identification

Box size：52x40x30

Brand:Huachenyang Factory

Product Features

Foam Sampling Nasal Swab refers to the foam sampling nasal swab, which is described in detail below:

Material and Construction

• Swab head: usually made of polyurethane foam, this material has the characteristics of softness, good elasticity, strong water absorption, etc. It can gently contact the nasal mucosa, reduce discomfort during sampling, and effectively absorb secretions and cell samples in the nasal cavity.
• Handle: Generally made of medical grade plastics such as polypropylene (PP) or acrylonitrile butadiene styrene copolymer (ABS), it is hard and lightweight, making it easy for sampling personnel to grip and operate. Some handles are also designed with break points, making it convenient to place the swab head into the sampling tube after sampling.

Characteristics and advantages

• High sampling efficiency: the foam swab has a large surface area, which can increase the contact area with the nasal mucosa, so as to capture more mucus, saliva, cells and other samples, and improve the success rate and accuracy of sampling. For example, Foamtec medical nasopharyngeal swabs uses its polyurethane foam technology to provide excellent surface area to capture the maximum amount of target liquid.
• Good sample release: It has good release performance for the collected samples and can efficiently release the adsorbed samples into the transport medium or detection reagent, ensuring the accuracy of subsequent detection. Its sample release rate can usually reach over 90%.
• High comfort: the soft foam material and the slender, flexible handle design make it possible to better adapt to the physiological structure of the nasal cavity during the sampling process, reduce the irritation and damage to the nasal mucosa, and reduce the discomfort of patients, especially suitable for people with high requirements for sampling comfort, such as children, the elderly or nasal sensitive people.
• Strong safety: After strict sterilization treatment, such as gamma ray irradiation sterilization or ethylene oxide sterilization, the swabs are ensured to be sterile, heat free, and free of harmful substances such as RNase, DNAse, etc., avoiding contamination of the samples or affecting the test results.

Scope of application

• Virus detection: It can be used to detect a variety of respiratory viruses, such as SARS-CoV-2, rhinovirus, enterovirus, influenza virus, parainfluenza virus, respiratory syncytial virus, coronavirus, etc. It is an important tool for epidemic prevention and control and virus infection diagnosis.
• Bacterial testing: It helps to detect bacteria that cause respiratory infections, such as Streptococcus pneumoniae, Streptococcus pyogenes, etc., providing a basis for the diagnosis and treatment of bacterial diseases.
• Other testing: It can also be applied to genetic testing for some genetic and allergic diseases, as well as forensic evidence identification, by collecting cell samples from the nasal cavity for relevant genetic analysis or individual identification.

usage method

• Preparation before sampling: Check if the swab packaging is intact and mark relevant information on the label of the sampling tube, such as the patient’s name, sampling time, sample type, etc. At the same time, ask the patient to clean nasal secretions such as mucus.
• Insertion of swab: The sampler holds the swab handle and gently inserts the swab head into the patient’s nasal cavity, slowly advancing along the nasal passage, usually reaching the position of the nasopharynx or middle turbinate. The specific depth depends on the patient’s age and nasal structure.
• Rotating collection: Stay in the nasal cavity for 15-30 seconds to allow the swab to fully contact the nasal mucosa, absorb secretions and cells, and then gently rotate the swab 3-5 times to ensure sufficient sample collection.
• Extraction and storage: Slowly remove the swab, taking care to avoid contact between the swab head and other parts outside the nasal cavity to avoid contaminating the sample. Place the swab into the sampling tube, break the handle at the break point, discard the tail, tighten the tube cover, and send the sample for testing in a timely manner.

Description

Huachenyang Sterile Regular Tip Polyester Swab with Wood Shaft
Individually wrapped to prevent sample contamination
Polyester swabs are non-absorbent and contains no fatty acids or latent sugars, making it ideal for specimen transport, lab work, and diagnostic kits.
Sterile polyester swabs are individually wrapped.
Regular Tip: 17.45mm (.687″) L x 4.775mm (.188″) D.
Overall Length: 152.4mm (6″), Wood Shaft.
Packaged: 100 individually wrapped swabs per box, 10 boxes per case = 1000 sterile polyester swabs. Made in China.

Benefits:

All spun swabs are made to exacting and consistent tolerances using high-precision automated processes
The polystyrene handle offers durability
Lot coded for ease of traceability and quality
Each swab is individually packaged in a peel-apart sleeve to ensure sterility at point-of-use
Each sleeve is lot coded and has an expiration date (for inventory control)
Fifty sleeves are triple-bagged for easy introduction into sterile area
Triple-bagged bags are packaged in a case liner forming the fourth layer of bag protection
Gamma-irradiated to a Sterility Assurance Level of 10-6 and sterile validated according to AAMI guidelines
Tested for endotoxins, ions, and Non-Volatile Residue (NVR)

Features

Room temperature preservation: Contains unique anticoagulation and preservation reagents, which can be stably
transported and stored for 7 days or more at room temperature.
Stable storage: It can stabilize nucleated cells and prevent the release of cell genomic DNA from contaminating target free
DNA; inhibit nuclease degradation of free DNA to ensure sample quality.
Personalized design: Double-coded label design, easy to identify, reduce sample processing errors; clear blood sampling
volume identification, easy to observe; there are various material and size for choice, suitable for different scenarios.
Wide range of applications: Used for NIPT, tumor liquid biopsy, blood pathogenic microorganism detection, genetic disease
detection; third-party medical laboratory, hospital laboratory and obstetrics, etc.

Information

Name
Disposable Vacuum Blood
Collection Tube
Model
Cell-Free DNA Blood
Collection Tube
Specification
5 mL
10 mL
Rubber stopper color
Camouflage (glass), Purple (PET)
Camouflage (glass), Purple (PET)

Huachenyang (Shenzhen)Technology Co., LTD
8F, Building 4, 128# Shangnan East Rd, Huangpu Community, Xinqiao St, Bao’an, Shenzhen, Guangdong, China
http://www.chenyanglobal.com Email: info@chenyanglobal.com Tel: 86-755-27393226 Fax: 86-755-27381080

Product Performance

Excellent Protection of Blood Cellular DNA From Releasing

Pre-saturated IPA Snap Swab(3″/4.5″ are avialable)

The Plastic Handle on these Swab are filled with 99.9% IPA Solution.

Simply Squeeze or Snap the Plastic Handle and the Foam Head becomes saturated with just the right amount of Cleaning Solution.

Clean the Thermal Print Head by using a back & fourth motion to effectively remove dirt and debris accumulated on the print head thus extending the life of the print head and maintaining a readable image.

Available in 2 Sizes : 3.0” or 4.5”

Packing : 25 Swabs per Ziplock Bag ; 50 Swabs/Box

Part Number : IPASS-3.0 and

Part Number : IPASS-4.5 respectively.

Features:

• 100 ppi, Open Cell Polyurethane Rectangular Foam Tipped.
• Non Abrasive.

Typical Applications:

1. Computer Keyboards.
2. Optical and Magnetic Head Devices.
3. Electronic Components.

Specification

IPA Clean Swab

Made In China