Generate pollutant-free zero gas with the convenient Thermo Scientific™ 111 Zero Air Supply. Model 111 supplies pollutant-free air (zero air) from ambient air to allow for proper zeroing, and to provide clean diluent air for spanning ambient air analyzers.

Discover the iQ to work smarter with our next generation 111iQ Zero Air Supply.

The Thermo Scientific™ 111 Zero Air Supply is designed for applications where pollutant-free levels of NO, NO_x, O₃, SO₂, CO and hydrocarbons are required, with flows up to 20L/min. at pressures of 30psi. This model uses an external compressor; the pressure regulators, chemical scrubbers, reactor and temperature controller are all contained in a single convenient case.

Key Features:

• Critical components are self contained
• Limited Maintenance
• Exceptional ease of use