I have communicated with many air b&b owners in an attempt to find safe spaces to be able to venture out to and have had them be willing to change the heavily fragranced products they use only once, immediately prior to my arrival, but the regular ongoing use of such strong scents has already permeated everything in that space to the point of me not being able to safely commit.
No one I spoke with was interested in further discussion or learning more about how they're continuously poisoning themselves, their children, their pets, their guests, the air and the water via the products they're choosing. Each time the washing machine drains, where do you think that water goes? When the vent attached to your dryer pumps out the heavily fragranced products, it effects everyone, including the wildlife, your pets, your children, etc. Fragrance is pretty much the new secondhand smoke.
If you're using ANY fragranced/scented products in a space consistently, it won't automagically disappear by not using it once or twice. It leaves behind a chemical residue, just as it's designed to do. All efforts are greatly appreciated, for sure, but learning more about how to protect your immediate environment, therefor paying forward the benefits of living in and creating a much healthier space for your family as well as guests who pay you to stay in your space can only be a win/win for all concerned.
Also, learning how to better recognize when products are "green-washed" could greatly benefit everyone. Companies/marketing gurus use buzz words like "natural", "plant-based", "eco-friendly", etc. to convince you to buy it without disclosing all of the ingredients and potential harm of each. I, too, used to use all of the fragranced/scented/eco-friendly stuff for decades, but now my body recognizes the tox-sick-city of it all and I can no longer safely be around them. It is a cumulative effect. I've yet to be able to find an air b&b I can confidently commit to reserving. I look forward to the day that changes.
Meanwhile, here's some reading material to hopefully help provide more in depth information:
https://www.verywellhealth.com/long-term-covid-19-severe-fragrance-allergies-5087489
https://seriouslysensitivetopollution.org/2019/02/21/harm-reduction-policy-for-people-with-autism/ - has a link to a study and to a fragrance-free checklist (once you click on the "fragrance-free checklist link, scroll to the bottom for the option titled "2019-Fragrance-free-Checklist-FINAL1" that's printable)
http://theairweshare.org/printable-brochure/ - a great brochure that's free to print and share
https://www.researchgate.net/publication/345204037_Volatile_chemical_emissions_from_essential_oils_w... -and- https://www.wildwoodapothecary.org/essentialoilfree - explains why essential oils are also a major barrier, albeit them being marketed as a "safe and natural" alternative to synthetic fragrances
https://invisibledisabilities.org/environmental-illness/cdc-fragrance-free-policy/ - info regarding the fragrance-free policy that the CDC put into place in 2009
https://www.laborlawcenter.com/education-center/new-ada-guidelines-for-fragrance-sensitivity/ - more info regarding the ADA and MCS
https://www.psr.org/blog/resource/fragrances-fact-sheet/ - a link to download a 2-page printable fragrance fact sheet from physicians for social responsibility