Airthereal MA5000 Commercial Ozone Generator, High Capacity Ozone Machine Odor Removal - Home Air Ionizers O3 Deodorizer for Rooms, Smoke, Cars and Pets, Eliminate Odors up to 2000sq.ft., Blue

No name cheapy I bought a while back - https://www.amazon.com/dp/B0795P2674?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_8&th=1 I've used it in two very smoked in apartments previously though, which is why I initially bought it and it did a great job.