Here's my background on asthma.
Had asthma since 4 years of age, been in the hospital in an oxygen tent, sometimes for upto a month.
Here's a factual baseline of triggers.
Your carpet is number 1.
Companies like Stanley steemer, ServPro, etc excluding ChemDry if don't with a rotary head "powerhead" it scrubs, sprays, and ***** up contamination using a citric acid and urea cleanser.
Here's why normal carpet guys can essentially kill you. They're paid to hurry through about a dozen homes in 8-12 hours a day. This means they spray and suck up moisture barely ... the units they use have water pumps just like a car wash. It powers the dirt deep. Here's the scary parts.. mold, fungus, pet dander from previous half cared cleanings just got wet, mixed with anything imaginable from previous tenants upto and including, dogs dragging they're bottoms, Kitty hairballs spat out, toddler diaper leakage, boogers from people flicking them, the dog poo and spit from sidewalks and lawns.
So what happens to a wet towel left in the washer?? It mildews, and it was just cleaned.
Carpets being half-azzed cleaned will leave carpet wet for days!!!!! Growing mold from airborne spores. It will grow mildew, it will grow fungus from athletes foot, to fungus that grows on feces.
Also severely overwet carpet from shoddy cleanings will also leak into the padding and into the sub flooring that's made from amalgamated wood bonded by a sugar, based glue. Now you have hidden black mold.
Here's what a good carpet cleaner should do. Use only natural final rinse agents, make them show you what they're using, its actually required by law in all 50 states. Its called a material safety data sheet...MSDS.
If using a van mounted system with stick type wand.
They should make one quick WET pass then several DRY passes to remove all carpet filth and moisture.
it will appear that he either does a row side to side doing a Wet pass then go over the same area using Dry passes..
If not fire him...!!! Its your house you have the right.
OTHER TRIGGERS :
Scented wall plugins..these are deadly poisonous to dogs. Cats and humans. Never ever use them...ever never. They contain solvents that make dogs and cats go blind, "my opinion by observations in the field". They may be the cause of Lupus in women.
In 14 years of carpet cleaning and well over 200k customers and every single customer that had plugin air fresheners either had lupus, and/or blind pets, strangely I only recall one customer that still had her husband living. I would say only 4-5% had plugin fresheners out of all of them.
Dryer sheets :::
Dryer sheets contain a silica based lubricant to anti static, and oil up clothing. Dryer sheets more or less cook and deposit a powdery concoction with alot a chemicals all over your clothing. As you move the "powder" gets stirred around permitting it the be breathed into your lungs. And the powder may contain sulphur dioxide to help make them chemical flow. Sulphides cause asthma attacks.
Scented dryer sheets also cause rhionitis, and chronic eye discomforts. Just don't use them...ever.
Asthma inhalers cause asthma attacks..yep.
Most contain Sulphur Dioxide to preserve the medicinal value. Kinda....questionable ethics involved.. kinda like handing a bullet hole patch kit, that uses a shotgun to apply the bandaid with?? .
Wine: Beer: contain sulphites.... as a preservative..
Dried fruits: and trail mixes contain ALOT of sulphur dioxide as a preservative.
Buy a home food dehydrator and make your own banana chips and dried fruits.