f. Pesticide Respirators.
(1) Description. Pesticide respirators include all completely assembled
respirators that are designed for use as respiratory protection during entry into and
escape from atmospheres containing pesticide hazards. These would include the
(a) Front or back mounted gas masks.
(b) Chin style gas masks.
Chemical cartridge respirator.
(d) Air purifying respirator with attached blower.
(e) Combination devices.
(2) Limitations. Limitations previously discussed for each type of device will
also apply, in general, to pesticide respirators.
NOTE: See Table 2-4 for
of air purifying respirators and gas masks available
the federal supply system.
2-20. ATMOSPHERE-SUPPLYING RESPIRATORS
See Figure 2-14 for air supply and self-contained respirators.
a. General Description. A respirable atmosphere is supplied independent of
the ambient air surrounding the wearer. These devices provide protection against
oxygen deficiency and most toxic atmospheres.
b. General Limitations. Except for the supplied air suit, no protection is
provided against skin irritation by materials such as ammonia and hydrochloric acid
(HCl), or against absorption of materials such as hydro cyanic acid (HCN), tritium, or
organic phosphate pesticides through the skin. Face pieces present special problems
to individuals required to wear prescription lenses.