Protective hood with CO2 absorbent

Claim 1

A hood for providing the user of the hood with breathable air, the hood comprising: (a) a generally tubular portion having open upper and lower ends and a substantially non-perforated continuous sidewall having inner and outer side surfaces, the generally tubular portion being comprised of a substantially gas-impermeable film; (b) a generally circular hood portion comprised of the gas-impermeable film, the circular hood portion being connected to the upper end of the tubular portion; (c) a substantially annular, resilient neck seal attached to the inner side portion of the lower end of the tubular portion, the neck seal having an opening for permitting at least the head of the user into the hood to form a closure around the user; and (d) CO 2 absorption means disposed interiorly of the hood, a semi-permeable membrane retaining said CO 2 absorption means against a non-perforated portion of the inner surface of said tubular portion, the membrane having a porosity sufficient to retain the CO 2 absorption means out of contact with the user and allow CO 2 and moisture to pass through the membrane.