The oyster fungus (Pleurotus ostreatus) is more cultivated by producers due to their low investment requirements compared to other cash crops in order to ease cultivation, adaptation to the local agro-products and the necessary facilities. However, the technology used so far by the small and medium producers, is based on the continued acquisition of inoculum (seed) primarily to educational institutions and agro-industrial laboratories, making dependent activity on the availability of the inoculum, transportation, in addition to increasing production costs due to the high cost of the inoculum, which is why the rural production of oyster fungus inoculum through a laminar flow hood homemade (rustic) is a tool that is being developed at the School of Engineering Agro forestry, BUAP and most importantly, be a model that is capable of being transferred to the region northern of Puebla State, representing an alternative appropriate, technology to promote the cultivation of edible fungi, as well as employment generation in the region. The laminar flow hood rustic is efficient to produce the innoculum and reduce the production cost in about 40%.

Key words: Oyster fungus, seed, agro-industrial laboratories, laminar flow hood rustic.