We live in an old stone barn conversion with no insulation and exposed stone walls. This has made a good bit of difference Keeping a weekly note of meter readings and we are definitely using less gas P.V. BARCLAY-GEORGE
My shower room sometimes develops a damp smell which the Air Purifying Bag got rid of overnight. I put a second sack in my kitchen where cooking smells can linger. Again total success TIM ELSTER