Gelatin Filters
(presterilized)

For the Collection of Bioaerosols

• Unequaled bacteria retention levels as high as 99.9995% for Bacillus subtilis niger
• Designed specifically for the collection of and analysis of airborne microbes.
• High moisture content helps to maintain microorganism viability for short sampling periods
• Help increase survival of stress-sensitive microbes
• Suitable for isokinetic sampling of both bacteria and viruses
• Simple analysis techniques
• Dissolve easily when placed on agar

Gelatin Filters Instructions (PDF)

Gelatin Filters Product Data Bulletin (PDF)

SKC Gelatin Filters are suitable for the collection and analysis of airborne microbes. Gelatin filters not only reliably retain bacteria, but are also highly effective for the collection of viruses. Routinely used to quantitatively collect airborne microorganisms, gelatin filters have an inherent high moisture content that helps to maintain viability of stress-sensitive microorganisms during short sampling periods. The gelatin material can be dissolved easily in a buffer or agar medium for a gentle transition from sample medium to growth medium and easy detection of bacteria and viruses.

The ability of SKC Gelatin Filters to collect extremely low bacteria counts at higher flow rates (short sampling periods) makes them one of the most efficient media to use for sampling bioaerosols.

Performance Profile:

Material:	Water-soluble gelatin
Pore size:	While having a nominal pore size of 3.0 µm, a higher capture efficiency of sub-micron particles can be expected due to the separations that occur on the surface and within the filter. It is through inertial impaction and diffusional interception that these filters can remove particles much smaller that 3.0 µm.
Diameter:	25 mm or 37 mm
Thickness:	250 µm
Sterilization:	Presterilized by gamma radiation. Filters individually wrapped and packaged in units of five each in a polyethylene bag.
Storage:	Refrigeration (4-8 C) storage is recommended. Do NOT place in freezer. Caution: Avoid exposing filters to moisture, chemical vapors, and extreme temperatures.
Shelf-life:	3 years from date of manufacture
Analysis:	Indirect method. Gelatin filters dissolve when placed on agar plates.

Ordering Information    

Diameter (mm)	Support Pad Incl.	Notes	Qty.	Cat. No.
25	No	water-soluble gelatin, presterilized recommended for use with the Button Sampler	50	225-9551
37	No	water-soluble gelatin, presterilized Limited shelf-life; refrigerated storage recommended.	50	225-9552

Gelatin Filters Instructions (PDF)

Gelatin Filters Product Data Bulletin (PDF)

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About Using Gelatin Filters with the Button Sampler

For maximum microorganism survivability and superior collection of inhalable size bioaerosols, use gelatin filters with the SKC Button Sampler. Combining the Button Sampler's exceptional filter collection uniformity and low intersample variation with the nurturing properties of gelatin filters creates a sampler that is most efficient at collecting bioaerosols for viable or non-viable analysis. Click here to go to the Button Sampler Page

A typical filter will have a rough side and a shiny side. The shiny side is easier to read under a microscope, therefore, expose the shiny side to the air for microscopic analysis. The rough side holds dust more effectively; expose the rough side for gravimetric analysis.

Gelatin filters feature high moisture content, however, they are very brittle and break easily. Handle with care.

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This page was last modified March 1, 2007