You need the right tools if you are going to properly access your indoor air quality. You need to assess your indoor air quality if you are going to come up with the proper solutions. There home.howstuffworks.com/home-improvement/heating-and-cooling/how-to-repair-central-air-conditioners.htm - home.howstuffworks.com/home-improvement/heating-and-cooling/how-to-repair-central-air-conditioners.htm - are a lot of tools in the industry and knowing what tools you need to use can be at times confusing and overwhelming. Here are 8 of the most common tools that you would use in evaluating indoor air quality. They include: Petri Dish Tests, Swab Kit Tests, Air-O-Cell Sampler and Sampling www.controllingpollution.com/water-pollution-images/ - pictures of water pollution - Machine, Moisture Meter, Tape Lift Tests, Particle Counter, VOC meter, and VOC Lab Test Kits.