Coventry Sealed Foam Swabs

Coventry™ Sealed Foam Swabs are constructed from reticulated 100 pores per inch medical grade foam which features the best open cell structure, providing excellent particle entrapment characteristics. The foam is thermally bonded to the swab handle without using adhesives. These swabs are the most economical and are ideal for general applications.



Features & Benefits

  • The most cost-effective swabs for general-purpose applications
  • 100 ppi reticulated medical-grade foam provides excellent particle entrapment
  • The open-cell structure gives the best solvent holding capacity of any style of swab
  • Free of adhesives or binders that could contaminate your process
  • Fiberless construction does not generate particles
  • Available Aqua-Prime™ processed


  • Place and clean excess adhesives after gluing
  • Remove contamination from connectors and drives
  • Micro mechanical cleaning
  • Maintenance and care of office equipment, electronic devices, printers, and copiers
  • Remove flux residue from printed circuit boards
  • Good for general purpose cleaning

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Coventry Sealed Foam Swabs - 41050


2.80 " (7.1 cm) Polypropylene Handle, 0 .14" (3.56 mm) Foam Head
Part # Size Units Per Case Price Per Case Add To Cart

500 swabs per bag

5 bags $368.80
Coventry Sealed Foam Swabs - 43170


6.0 " (15.24 cm) Wood, Foam Over Cotton, 0.35" (8.8 mm) Head
Part # Size Units Per Case Price Per Case Add To Cart

500 swabs per bag

5 bags $705.40
Coventry Sealed Foam Swabs - 44070


3.2 " (8.0 cm) Polypropylene Handle, 0.13" (3.3 mm) Foam Head
Part # Size Units Per Case Price Per Case Add To Cart

500 swabs per bag

5 bags $392.75
Coventry Sealed Foam Swabs - 48040


2.7" (6.9 cm) Polypropylene Flexible Tip, 0 .12" (3.0 mm) Foam Head
Part # Size Units Per Case Price Per Case Add To Cart

500 swabs per bag

5 bags $469.85
Coventry Sealed Foam Swabs - 49280


6.5 " (16.4 cm) Polypropylene Flexible Tip, 0.19" (4.7 mm) Foam Head
Part # Size Units Per Case Price Per Case Add To Cart

500 swabs per bag

5 bags $734.95


What are environmental swabs?

Environmental swabs are sampling tools used to collect samples from surfaces in the environment to test for the presence of various microorganisms, contaminants, or residues. These swabs typically consist of a sterile swab attached to a handle, which makes it easy to swipe and collect samples from different surfaces.

The primary purpose of environmental swabbing is to assess the cleanliness and hygiene of surfaces in various settings, including healthcare facilities, food processing plants, laboratories, and public spaces. By testing environmental swabs, organizations can monitor and identify potential sources of contamination, prevent the spread of infections, and ensure compliance with health and safety standards.

Common uses of environmental swabs include:

  • Microbial monitoring: Swabs are used to detect and quantify bacteria, fungi, and other microorganisms present on surfaces. This is particularly important in healthcare settings and food processing facilities to prevent the spread of infections and maintain product safety.
  • Allergen detection: Swabs are employed to identify the presence of allergens in food processing areas, helping to prevent cross-contamination and ensure product safety for individuals with specific allergies.
  • Residue detection: Swabs can be used to test for the presence of chemical residues, such as cleaning agents, pesticides, or heavy metals, on surfaces to ensure compliance with safety regulations.
  • Cross-contamination prevention: Environmental swabs can identify potential sources of cross-contamination in various industries, ensuring that proper sanitation measures are in place.

To use an environmental swab, the swab is rubbed or rolled over the targeted surface to collect any microorganisms or contaminants present. The swab is then returned to its sterile packaging for transport to a laboratory, where it is processed for analysis and identification of any potential hazards.

It is important to use proper sampling techniques and follow established guidelines to obtain accurate and reliable results. Environmental swabbing is a valuable tool in ensuring the safety and cleanliness of various environments.

What are the different types of cleanroom swabs?

Cleanroom swabs are essential tools used in controlled environments, such as cleanrooms, where maintaining high levels of cleanliness and avoiding contamination is crucial. Different types of cleanroom swabs are designed to meet specific requirements and are made from various materials to suit different applications. Some common types of cleanroom swabs include:

  • Foam Swabs: Foam swabs are made from polyurethane foam, which has excellent solvent compatibility and high absorbency. These swabs are ideal for cleaning delicate surfaces, applying solvents, and removing excess residues. Foam swabs come in different sizes and shapes to address various cleaning needs.
  • Polyester Swabs: Polyester swabs are constructed from a synthetic material that has low particle generation and good chemical resistance. These swabs are often used in precision cleaning applications, particularly in sensitive electronic components and hard-to-reach areas.
  • Microfiber Swabs: Microfiber swabs are designed to trap and remove microscopic particles effectively. They are often used in cleaning sensitive optical surfaces, camera lenses, and other high-precision equipment.
  • Cotton Swabs: Cotton swabs, also known as cotton-tipped swabs, have a cotton tip attached to a plastic or wooden handle. They are commonly used in less critical cleanroom environments for general cleaning and application of solutions.
  • ESD-Safe Swabs: Electrostatic discharge (ESD)-safe swabs are designed to prevent damage to sensitive electronic components that could be harmed by static electricity. These swabs are usually constructed with conductive materials that dissipate static charges.

It's important to select the right type of cleanroom swab based on the specific needs of the cleanroom environment and the surfaces or equipment being cleaned. Each type of swab has unique characteristics that make it suitable for different applications, so proper selection is essential to ensure effective cleaning and avoid any risk of contamination.

What are the uses of cleanroom swabs?

Cleanroom swabs are essential tools used in various industries, especially in environments that require strict contamination control, such as cleanrooms and sensitive manufacturing processes. These swabs are designed to effectively clean and remove particles, residues, and contaminants without leaving any trace of lint or other foreign matter. Some common uses of cleanroom swabs include:

  • Electronics Manufacturing: Cleanroom swabs are extensively used in the electronics industry for cleaning delicate electronic components, printed circuit boards (PCBs), and other sensitive equipment during assembly, testing, and maintenance processes.
  • Pharmaceutical and Biotechnology: In pharmaceutical and biotech cleanrooms, swabs are used to sample surfaces and equipment to ensure proper hygiene and prevent cross-contamination.
  • Aerospace and Defense: Cleanroom swabs are employed in aerospace and defense applications for cleaning critical components, optics, and precision instruments to maintain performance and reliability.
  • Medical Device Manufacturing: During the manufacturing of medical devices and equipment, cleanroom swabs are utilized to ensure proper cleanliness and quality of the products.
  • Optics and Photonics: In the optics and photonics industry, where precision is crucial, cleanroom swabs are used to clean lenses, mirrors, and other optical components without scratching or damaging them.
  • Semiconductor Industry: Cleanroom swabs are widely used in the semiconductor manufacturing process to clean and maintain the purity of wafers, chambers, and other semiconductor equipment.
  • Automotive Manufacturing: In automotive manufacturing facilities, cleanroom swabs are used for cleaning sensitive electronic components, sensors, and precision parts.
  • Food and Beverage Production: In the food and beverage industry, cleanroom swabs are used to monitor and maintain cleanliness in processing equipment and packaging areas.
  • Printers and Print Head Maintenance: Cleanroom swabs are employed to clean print heads and other critical components in printers, ensuring consistent print quality.
  • Laboratories: In research and analytical laboratories, cleanroom swabs are used for sampling, cleaning, and handling sensitive instruments and equipment.

It's important to note that different cleanroom swabs are designed for specific applications and requirements, such as solvent compatibility, particle generation, and overall cleanliness. When selecting cleanroom swabs, it is crucial to consider the specific needs of the application and ensure that the swabs meet the required standards and specifications for cleanliness and performance.

What is a cleanroom swab?

A cleanroom swab is a specialized cleaning tool used in controlled environments such as cleanrooms, laboratories, and manufacturing facilities where maintaining a high level of cleanliness and eliminating contaminants is essential. Cleanrooms are environments with low levels of airborne particles and other pollutants to ensure the integrity of sensitive processes, products, or experiments.

Cleanroom swabs are designed to be non-shedding, low in particle generation, and non-reactive, so they do not introduce contaminants or interfere with the materials being processed or tested. They come in various shapes and sizes, typically with a handle or shaft made of materials like plastic, wood, or metal, and a head made from materials like foam, polyester, or microfiber.

The choice of swab material and construction depends on the specific cleaning requirements and the type of surface or equipment being cleaned. Some cleanroom swabs are pre-saturated with isopropyl alcohol or other cleaning agents to aid in removing residues and contaminants.

Cleanroom swabs play a critical role in various industries, including semiconductor manufacturing, pharmaceuticals, biotechnology, aerospace, and medical devices, where even tiny particles or contaminants can cause significant defects or compromise product quality. Proper cleaning and maintenance of cleanrooms and equipment are vital to ensure consistent and reliable performance in these industries.

What is a foam swab? / Why should I use a foam swab?

While cotton bud swabs (aka Q-tips) are commonly used for all kinds of precision cleaning, foam swabs are commonly used to reduce contamination from cotton threads and particulates. Foam swabs are usually made of open cell polyurethane for maximum cleanliness and absorbency.


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