Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Really bad filters

I have always received the Vornado filters in the original Vorando box. This time it was different as it just came in plastic. The filters also stink like rotten fish and spread the smell when the humidifier is turned on. THESE ARE NOT ORIGINAL VORNADO FILTERS! Please refrain from buying these as the seller is not selling the original filters.