I scheduled 416-SO Clean to clean my carpets in two hallways, a staircase and combined living room/dining room. When searching for carpet cleaning services, I forgot to check if they use "environmentally friendly" or "non-toxic cleaning agents". The service personnel (Richard and Alezandio) were very professional - they were on time, fast, took care with furniture, did a good job cleaning and got the stains out. However, the smell of cleaning fluid is very strong. Service was very good and a fair price, but if you have sensitivity to chemicals, I wouldn't recommend.