I just bought a cheapo at Walmart at an end of the summer sale.LOl. Works good enough for me. Also dry a lot of stuff above the refrigerator spices and such.
If you don’t have a dehydrator, you can turn your oven way way down, and use it.
Have you dried tomatoes? Mine are kind of rubbery, with the dryer I have now, that’s why I’m thinking of another dryer. I’m getting ready to freeze some herbs in olive oil. I’m going to do both fresh and dried and freeze some mint ice cubes.