About Us

DDAair is a subsidiary of Darren Design & Associates, a renowned interior design firm in Hong Kong since 2001. Led by Chief Designer Darren Au-yeung, DDA has been creating customized design solutions tailored to reflect the needs, tastes and lifestyle of every client.


DDA is among the first few design companies to introduce eco-conscious standards especially Indoor Air Quality (IAQ) into space management. As demand for better IAQ is high, DDAair is established with a main focus to care for your family, home and working environment.


We use a combination of advanced technologies to help fight household air pollution. Our solution not only can minimize your family from exposing to toxic chemicals but also remove thoroughly allergens like formaldehyde, respirable suspended particulates, dust mites, moulds, bacteria, fungi, pollens that trigger Immunoglobulin E (IgE). Protect Your Family from Allergy like Asthma, Bronchitis, Eczema, Sneeze & Itchy Skin. 


For example, photocatalyst Coatings helps to eliminate air borne viruses by rupturing cells that come into contact with the surface. An application of photocatalyst Coatings to surfaces, which are exposed to daylight, LED or fluorescent light, safely decomposes viruses and bacteria and also neutralises bad and strong smelling odours. 


Chitin/Chitosan is also used to prevent and remove VOC, especially from a newly decorated home or office.


DDAair is specialised in handling full renovation projects from concept to completion, with an emphasis on eco-living and substanability. Our designers and strategic partners in green building and green contracting are equipped to design and execute residential and commercial spaces to certification level.