Inspector Outlet, The Official InterNACHI Store

Exclusive Discounted Mold Tests

Regular price $22.50

Exclusive InterNACHI members-only deal!

Choose from Z5, Air-O-Cell, Swab, or BioTape with same-day lab analysis included, for just $22.50 per kit (20% off non-member price).  Even better, buy 12 kits for $270 and get a 13th kit for free!

About Z5

The Z5 sampling cassette is a first-line mold screening tool that efficiently and reliably collects mold. It can be easily used by home inspectors to get preliminary information on whether a mold problem may exist and further investigation is warranted.

The Z5 is a spore trap impactor that uses slit impaction as the collection mechanism. This reliable, industry recognized method allows for superior mold spore collection.

Z5 Advantages
  • The Z5 slit impaction collection method is the industry recognized method for superior mold collection.
  • Quick 5 x 5 sampling (5 LPM for 5 minutes)
  • Works with any pump set at a flow of 5 LPM
  • An easy replacement for competitive products that over-promise and under deliver
Manufactured exclusively for PRO-LAB by Zefon International, an ISO 9001:2000 certified manufacturer and industry leader in the design and manufacture of air sampling equipment.

About Air-O-Cell®
The Air-O-Cell® is designed for the rapid collection of a wide range of airborne aerosols including mold spores, pollen, insect parts, skin cells, fibers and inorganic particulate. A minimum of two (2) cassettes are required for proper sampling. One for the outdoor (base line) sample and one per area of concern in the indoor testing area. Air-O-Cell can be used with any standard off-the-shelf area sampling pump capable of drawing 15 LPM open flow.

About Swabs
Swabs are used to collect samples of suspected mold contamination. These sterile swabs are individually sealed to prevent cross contamination and are easy to ship with your air samples. Once received at the lab the swab can be analyzed via direct microscopic examination , cultured or cultured for species identification.

About the Lab Analysis & Reports

Same-day lab analysis included. The AIHA accredited laboratory report includes easy to interpret data on charts, graphs, mold glossary, and the only report in the industry where the laboratory makes a determination of the results so you don't have to.

About PRO-LAB®

PRO-LAB® is the official InterNACHI lab, offering laboratory testing services for mold, radon, lead, allergen, asbestos, and drinking water pollutants. Staffed with Certified Indoor Air Quality Professionals, Radon Measurement Specialists and Chemists, PRO-LAB® has the knowledge and experience to assist in any environmental investigations. PRO-LAB® is the first laboratory to offer all lab supplies bundled together with the lab analysis fees for simplified processing.

Operating Procedures

Z5 Standard Operating Procedures
  • Remove the caps from both ends of the Z5
  • Attach the vinyl tubing from pump to bottom of the Z5 (where round cap was inserted)
  • Turn pump on
  • Calibrate pump before each use making sure that the bottom of the stainless steel ball in the flow-meter is sitting above the 5-liter line marker
  • Listen for suction
  • Run pump for 5 minutes
Download sampling instructions (
Download data sheet (

Flat rate shipping per order anywhere in the United States or Canada, no matter the quantity ordered.
$16 flat rate Ground, any quantity
$43 flat rate 2nd Day Air, any quantity
$68 flat rate Next Day Air, any quantity

Exclusively from PRO-LAB, InterNACHI's official environmental laboratory