Lucy,
I have just purchased a Whirlpool dryer and have not had any problems with offgassing.

Every appliance repair person I asked said to go with a basic Whirlpool washer and dryer. They're the most reliable, and the less expensive models have fewer bells and whistles to break. I did just that and have been happy. I've had no problem with the enamel either.

You mentioned that you are not against paying for quality and reliability. With that I recommend Miele. I owned and ran a diaper service for a few years. We had commercial computer programed machines and when we sold, we didn't make much money, but I had learned so much about laundry that I needed the best home machine regardless of cost. I found Miele and spent $3000 on the pair. My husband was against the dryer because he prefers to hang it in the sun. I have to worry about pollen and the sun is hard on the clothes. I've owned the dryer for 6 years and am still impressed. The moisture sensor still works well. The lint filter is better than most. I was convinced when I learned that even 40 year old machines are coveted in Germany on the resale market. Spending for longevity is economical and ecological.

Sometimes the powder coated stuff doesn't smell until turned on. All of them will smell. I chose one with stainless steel drum, no problems so far after 4 years, with smelly plastic on the outside.

since we have a laundry room you can close up.I got a GE profile Harmony. Very smelly outside. Would NOT choose if you cannot close your laundry room off. I also have read that the new front loaders have a big problem with mold so I would choose a toploader which this is.

I am amazed at how many people are OK with most dryers. In my experience, powder coating in dryers ALWAYS AND FOREVER gets into the stuff dried in them. I cannot afford a stainless interior dryer. I am concerned about the plastic "ribs" inside the dryer, that keep the clothes moving...my best drying happens when i can hang (after being dried in the dryer) the items outdoors, or if necessary indoors, for 4-8 hrs and the gases from the dryer interior seem to leave the materials. I never dry the clothes i wear, i just hang them up. Much safer. Blankets and towels go in the dryer, and blankets, since i am near them for so many hours, must be hung up to air out. Towels don't bother me but they aren't close to me for very long.