A METHOD AND APPARATUS FOR DILUTION OF AEROSOLS

摘要

The invention provides an apparatus set up for diluting aerosols; the apparatus comprising:
(i) a dilution chamber (1);
(ii) an aerosol inlet (2) on one side of the dilution chamber for admitting an aerosol into the dilution chamber;(iii) an aerosol outlet (3) on the same or another side of the dilution chamber through which diluted aerosol particles can leave the dilution chamber;(iv) a diluent gas inlet (4) for admitting into the chamber a diluent gas;(v) a diluent gas outlet (5) through which diluent gas can leave the dilution chamber;(vi) a gas flow maintenance system (6) that provides circulation of the diluent gas through the dilution chamber; and(vii) means for determining the extent of dilution of the aerosol leaving the aerosol outlet.;The invention also provides methods of diluting and counting aerosol particles using the apparatus of the invention.

主权项

1. An apparatus set up for diluting aerosols; the apparatus comprising:
(i) a dilution chamber; (ii) an aerosol inlet on one side of the dilution chamber for admitting an aerosol into the dilution chamber; (iii) an aerosol outlet on the same or another side of the dilution chamber through which diluted aerosol particles can leave the dilution chamber; (iv) a diluent gas inlet for admitting into the chamber a diluent gas; (v) a diluent gas outlet through which diluent gas can leave the dilution chamber; (vi) a gas flow maintenance system that provides circulation of the diluent gas through the dilution chamber; and (vii) means for determining the extent of dilution of the aerosol leaving the aerosol outlet.