US 2003/0145858 A1 · Dental mask

Abstract

A dental mask which has two separate chambers, one for inhalation and the other for exhalation. The two separate chambers being separated by an elasticized strip across the philtrum area. The mask is designed to be disposable, yet also have the ability to accept, for increased protection, filter insertable pads which can be placed in the inner surface of the mask. An embodiment of the mask would allow the main frame to be reusable, by having means for snapping a disposable filter onto the frame. The mask utilizes semirigid fibrous filtration material in the primary filtering area and transitional semirigid to soft pleated materials in the secondary filtering areas. The mask has a color changing adhesive strip section for retaining captured particles away from the primary nasal area and also to indicate when the mask has reached a saturation level thereby requiring change. The mask will have means for accommodating accessory items such as protective shields, reflective panels and venting panels.

Claims20

Dependent claims

A dental mask comprising:

an upper filtration portion having an upper inhalation chamber defined therein for covering nose area;
a lower filtration portion having a lower exhalation chamber defined therein for covering mouth area;
an elasticized philtrum band extending between and integrally connecting the upper portion to the lower portion, the band adapted to form an impervious gas tight seal between the two chambers;
and
a frame integrally encasing the upper portion, the lower portion and the philtrum band,
wherein the wearer, by breathing though the upper portion and exhaling through the lower portion, will substantially eliminate rebreathing of wearer's own exhaled breath.

3 more elements

Dependencies are inferred from the claim text.

Dental mask

Life of this patent

Dental mask

Life of this patent

Abstract

Claims20