IRS(Indoor residual spraying) is the application of a long-lasting, residual insecticide to potential malaria vector resting surfaces such as internal walls eaves and ceilings of all houses or structures (including domestic animal shelters) where such vectors might come into contact with the insecticide. (Sources: who.int) Renowned VECTRE® Professional spray pump, from the most reliable and advanced manufacturing unit. Successful,widely accepted and highly recommended for its quality and workability as per WHO specifications. In order to manufacture the best IRS sprayer as per WHO standard, which is durable and can work very efficiently in all kinds of malaria control areas,professional Japanese engineers joined this team to design new VECTRE sprayer,and manufacture it under the highest quality standard, using the best material to construct every part of this sprayer. All the major parts are made of high quality SUS304 stainless steel,which is far better than brass,not only can resist all kinds of chemicals,but also guaranee that there's no rust of brass to jeopardize the effect of IRS. It's truly profesional and efficient for malaria control