Ukubonisa umlingani
1. Ukusebenza okungangeni manzi okungaphezu kuka-3,000 mmH2O ngaphansi kwezindinganiso zaseMelika (ASTM).
2. Ukuphefumula okungaphezu kuka-3,000 g/24h m2 ngaphansi kwezindinganiso zaseMelika (ASTM).
3. Yonke imithungo iteyipwe.
4. Ukwakhiwa okuhlanganisiwe kwe-hood/collar, i-hood igotshwe yafihlwa ngaphakathi kwe-collar.
5. Amaphakethe e-hem angenamithungo aneziphuphu ezingangeni manzi.