Way better to purchase this unit than hire, if you can find a hire place near by. Good quality item, especially for the price. Really does remove cement and plaster dust from the air

I’m very impressed with the VEVOR 800 CFM Air Purifier / Negative Air Machine. We use it for professional renovation, construction and remediation work, and it has performed extremely well. The airflow is powerful, and the 3-stage filtration system does a very good job of controlling dust and airborne particles. We have also used it to create negative pressure in work areas, which is especially useful during demolition, renovation and cleaning work. The unit feels solid, is easy to move around, and the stackable design is a big advantage when more airflow is needed. For the price, I think it offers excellent value compared with many more expensive professional machines. Overall, a very useful piece of equipment for contractors, restoration work and anyone who needs serious air filtration or negative air pressure. Highly recommended. 5/5.