rangrz
Bluelighter
- Joined
- Mar 23, 2008
- Messages
- 11,691
I really don't think your bit of added pressure is going to damage. For a set amount of gas at X temp, pressure is a function of the container volume. Given the quite low pressure to start with in the bong, combined with the bong being drastically smaller then your lung volume, the absolute over-pressure is going to be nominal...can you hold it out with your breath power/blow out against it? If yes, it is lower pressure then your lungs have by doing so, and by extension, lower then your respiratory pressure during a deep breath.
The best I know on lung damage from repeated over-pressure is from positive pressure mechanical ventilation. In a person without pre-existing lung issues, it is a common problem on ventilation periods of over 5 days (at ~10~ breaths per minute) where the tidal volume is excess of ~11~ml/kg body weight. Typical tidal volume is about 7ml/kg, so for me that is 567ml, or over a half liter of air, at 11ml 891ml...almost a liter! I doubt your bong is pushing close to a liter per hit into your lungs, and I doubt your doing it for days on end 10 times a minute, it is seemingly, to me at least, unlikely that it would it cause damage.
The best I know on lung damage from repeated over-pressure is from positive pressure mechanical ventilation. In a person without pre-existing lung issues, it is a common problem on ventilation periods of over 5 days (at ~10~ breaths per minute) where the tidal volume is excess of ~11~ml/kg body weight. Typical tidal volume is about 7ml/kg, so for me that is 567ml, or over a half liter of air, at 11ml 891ml...almost a liter! I doubt your bong is pushing close to a liter per hit into your lungs, and I doubt your doing it for days on end 10 times a minute, it is seemingly, to me at least, unlikely that it would it cause damage.