FIELD: devices, apparatus, or methods for life-saving.
SUBSTANCE: respirator comprises filtering hemi-mask made of horizontal folds, obturator, nose clamp, and head cord. The horizontal folds of the hemi-mask are made of top and bottom parallel rows of corrugations. The top and bottom rows of corrugations are interconnected through the rectangular cross-piece. The rectangular cross-piece and face parts of the corrugations of the top and bottom rows of the folds are interconnected by means of detachable fastening members. The respirator is additionally provided with a spacer made of two parallel plates made of a flexible material.
EFFECT: improved design and reduced air resistance.
2 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR FORMING FILTERING SEMIMASK OF RESPIRATOR | 1993 |
|
RU2074757C1 |
| RESPIRATOR | 2005 |
|
RU2284840C1 |
| RESPIRATOR AND RESPIRATOR MANUFACTURE METHOD | 1998 |
|
RU2128068C1 |
| METHOD OF MANUFACTURE OF BREATHING APPARATUS HALF-MASK | 1993 |
|
RU2074755C1 |
| SEMIMASK FOR RESPIRATOR | 2001 |
|
RU2186597C1 |
| RESPIRATOR | 1992 |
|
RU2023454C1 |
| RESPIRATOR | 0 |
|
SU845830A1 |
| DEVICE FOR PROTECTING RESPIRATORY APPARATUS | 2003 |
|
RU2250120C2 |
| FILTERING HALF-MASK FOR PROTECTION AGAINST AEROSOLS AND DUST | 2013 |
|
RU2550329C2 |
| RESPIRATOR | 1995 |
|
RU2090225C1 |
