Patent ID: 9734305
Date: 2017-08-15
CPC Classifications: B01D,G06F

Claim:
1. A fume extraction filtration apparatus which comprises: an identifier module capable of wirelessly communicating a credential signal, a receiver for receiving the credential signal and validating the same, wherein the identifier module is attached to a removable filter unit, wherein the receiver is secured to a body of the apparatus, which body is configured to removably receive the filter unit; and wherein the apparatus comprises a control unit connected to the receiver, the control unit comprising a) a memory in which is stored one or more valid credential codes, and b) a processor configured to compare a credential signal received by the receiver from a removable filter unit with the one or more credential codes stored in the memory, and the control unit arranged to perform the comparison in response to receiving an operator-initiated signal to commence operation of the apparatus, whereby the processor is configured to perform a validation process wherein the received credential signal is processed to determine whether it corresponds to an acceptable credential signal, to allow activation of the apparatus if the credential signal is valid, and to prevent activation of the apparatus if the credential signal is invalid.