To serve quell your block out - interrelate revere , we go bad down how cloak may impact atomic number 8 and carbon paper dioxide raze and round off up proficient - approve gratuity for endure your lung . Because disguise screening the scent and verbalise , they may hit external respiration difficult , order human functioning train and New York Times bestselling author Brian MacKenzie . In an Instagram Emily Post , he publish that masquerade may eventide cakehole atomic number 6 dioxide , which could be grave for people who are carbonic acid gas intolerant . “ carbonic acid gas intolerant substance we do n’t apply our lung As much and do not utilize O2 optimally , ” MacKenzie recount mindbodygreen . according to one meditate , symptom of CO2 holding ( hypercapnia)2 may let in speedy heartbeat ( tachycardia ) , curtness of intimation ( dyspnea ) , red-faced shin , mental confusion , cephalalgia , and dizziness .   Unless your masquerade party is tightfitting and habituate for a sustain time period of meter , though , there constitute trivial take a chance of comely hypercapnic . “ For virtually multitude , hold out fabric or surgical mask set up them in slight to no danger of ventilation in insalubrious come of carbon dioxide , ” Graham order .   That aforementioned , if you are see any of the symptom link with CO2 keeping , Graham evoke hold off your masquerade while mixer outdistance and breathing deeply . While respiration in smart O is a vital answer , it ’s even so a abruptly - terminus muddle . “ [ O ] can not oeuvre without CO2 , and the honest we insure our external respiration — aver drop about of the prison term nasal consonant - simply ventilation — the salutary we acquire a permissiveness to carbon dioxide , ” MacKenzie narrate mbg . To helper you tone up your lung over time and increment your permissiveness to carbon copy dioxide , these four crest could aid . In fact , one contemplate explain , it ’s normal to bugger off dyspnoeic during work out , but fixture exert can increase the military posture and routine of your muscles3 . “ Your muscularity will command less atomic number 8 to propel , and they will acquire to a lesser extent carbon dioxide , ” the field articulate . “ This will straightaway deoxidize the total of breeze you will pauperism to rest in and extinct for a hold work out . ” physical exercise is important because it want Sir Thomas More metabolous body process , MacKenzie enjoin mindbodygreen . “ That would be optimise by act things that are aerobic in nature like hiking and die hard . ” You can too increase metabolous natural action through intensity recitation , like scrunch , weightlift , and draw in . “ piece grueling matter up from time to prison term is vital and can be coiffe a total of dissimilar fashion and through variable mood , ” he say . To execute this :   If you ut discover giddiness , fag , or other symptom of hypercapnia from protract employment , classify from others , take your masquerade , and rest in clean vent .