Attention:

Certain features of Sigma-Aldrich.com will be down for maintenance the evening of Friday August 18th starting at 8:00 pm CDT until Saturday August 19th at 12:01 pm CDT.   Please note that you still have telephone and email access to our local offices. We apologize for any inconvenience.

Profil`air Sensors and Related Products

The sensors are consumables. They incorporate the nanoporous material which filters, traps, and reacts selectively with the targeted pollutant. The Profil`air sensors are presently sold for formaldehyde measurement, and will soon be available for other leading indoor air pollutants.