1. Initially, you have to identify the Honeywell discount code you're keen on from this page and click on Get Code, located on the right side of the title.
2. Next, you'll witness the offer code being showcased and auto-copied to your clipboard.
3. Then go back to the shopping checkout page of honeywellstore.com, where you can find the promo code box and paste the code into it.
4. Ultimately, by clicking 'Apply Code', you will be able to see the discount amount on your existing order.