Jobs requiring protection include construction work, operating and repairing machinery, felling or trimming trees, entering buildings with low doors, repair, demolition, blasting, and electrical work. Hard hats are rigid head gear designed to protect the head from impact and falling or flying objects. Nonconducting hats also protect the wearer from electrical shock. Respiratory Protection Dust and chaff are well-known respiratory hazards to the farmer. Other hazards are toxic chemicals, oxygen-depleted atmospheres connected with silos, and large concentrations of animal wastes.
Dust masks filter out or trap minute airborne particles such as dust, chaff, and most molds.
They are useful when haying, harvesting, tilling dusty fields, applying granular fertilizers, grinding feed, and sweeping. Dust masks should never be used when working with volatile chemicals or when entering a toxic or oxygen-depleted atmosphere. This apparatus is a mask that covers the nose and mouth. It has filters to remove dust and absorbent material such as charcoal to absorb chemicals. This device offers protection for a limited amount of time from toxic gases, vapors, fumes, and extremely heavy dust.