| INSTRUMEX High Volume Sampler is based on |
| a simple design, standardized by the USEPA, to |
| monitor the Suspended Particulate Matter (SPM) |
| in ambient air and also simultaneous sampling |
| of pollutant gases like SO2, NOx, Cl2, H2S, CS2, |
| etc. There gases are analyzed subsequently by |
| simple chemistry method to determine |
| concentration of specific pollutants. |