FilterBuy Replacement Humidifier Wick Filters Compatible with Vornado MD1-0001, MD1-0002, MD1-1002. Pack of 6

I don't know where the fault lies but in the more than 10 years since I've been using my Vornado with the two 4.2 gallon total tanks I've never had the problem with filters getting as discolored (and what that means?) as those with the metal inserts and/or with using the original BestAir's Golden Solution. Until then the most I have ever seen on the wick filters was the build up of mineral deposits which I've been able to successfully remove with a water & vinegar soak—be advised that a too-long soak will turn filters to mush—after which I removed as much water as possible and stored them at a very low temp (to deter the growth of "undesirables") while completely new wick filters were in use in my cleaned and disinfected unit. That was a single year's strategy; I had never previously, and haven't since, frozen a soaked wick filter. Note: I'm not commenting on what freezing does to the aiding-in-humidifying quality of the paper in a wick filter.I've gotten filters here as one-time purchase and under amazon Subscription that were supposed to be identical to Vornado's originals, and elsewhere from other well-known manufacturers of products for humidifiers, and I've always added to the tanks a product to deter algae, bacteria, and mold growth and soon began adding a much-needed separate solution for mineral deposits. (Btw, are they necessary? Yes! In the less than 24 hours that my unit was turned off until I could address the filters conundrum the solution lying still at the bottom began turning green at one end—more light exposure there—while it turned yellow elsewhere.) The top was removed and the wick filters (which contain metal and will be tossed partially because they sat for several hours) were left in place but nothing had begun to grow VISIBLY on the filters themselves within those 24 still-water hours.My most-recent strategy of daily flipping and then switching of the front wick filter to the back and vice versa (since the back side is closer to a wall) gives them equal exposure, to both air and water in the unit's bottom tray, and seems to allow them adequate time in the bottom solution to keep them from solidifying with mineral deposits. Few people have that much determination or time to devote, but visibly improved health dictates use of a humidifier 24/7 once the heat is on.Only because I had two different brands of filters on hand—due to what you see in my photos—was I able to compare them, and there's no doubt that the  Vornado MD1-0002 Replacement Humidifier Wick (2-Pack)  is larger—wider and more dense—than the supposedly identical replacements because I had to use pressure to get each into the space those other "replacements" never fully-filled, AND at this point of purchase—very late Dec 2017—there is no metal supporting mesh in the center of each Vornado wick filter.I may be wrong but I have suspected a chemical reaction between that metal and/or the solutions I've used because I've never had any color but shades of yellow on wick-filters before. I briefly-entertained the possibility that soaking it in vinegar and possibly not fully removing it had left it open to reaction with either something in the wicks themselves (the metal? a different paper?) or the Golden Solution. But I have used no vinegar so far this heating season which rules that out.I will post again once I see how these newly-purchased wick filters from Vornado perform using  BestAir 3BT, Original BT Humidifier Bacteriostatic Water Treatment  and  Sunbeam Humidifier Water Treatment Solution  both of which were also newly-purchased.Update_2019-01-15: I've continued purchase nothing but Vornado wick filters—which arrive in Vornado's branded box each time—and I've had no repeat of the darkening discoloration problem I reported earlier. Nor do they have the metal mesh in the center like the filters that were substituted in my amazon subscriptions order that were purportedly Vornado brand.So now I'm considering using distilled water to see what effect that has on the minerals buildup since I truly hate being a slave to my humidifier's filters from every November and well into April. Listening to it run 24/7 is bad enough.

I was looking for the cheapest wicks that would fit the Vornado Evap40 4-Gallon Evaporative Humidifier, and these wicks from FilterBuy seem to be the best that still have relatively good reviews. From what I can tell, the wicks work well, as the humidity of my 700 square foot apartment increased by 5%, from 66% to 71%, when I replaced the old wicks provided by Vornado when I bought the humidifier with the new wicks from FilterBuy. Other reviewers complained about the wicks becoming dicolored with purple or other colors, and from my research and the 1st set of wicks I got from Vornado, that seems like it is just the normal effect of water reacting with the metal in the wicks over time. The wicks have metal inside them, I believe, to prevent mold/bacteria growth, as the wicks are constantly saturated with water. So the discoloring of the wicks do not necessarily mean a bad or cheap product, from my knowledge. Definitely consider these wicks for Vornado humidifiers, they seem to work very well!

I started using these when Vornado reduced the thickness of their OEM wicks and they no longer worked well or held up well. I live in a dry climate and run my Vornado EVAP3 humidifier 24 hours a day. These FilterBuy wicks work for about 3 weeks before they need to be replaced. Save money by purchasing in bulk and don't forget to use bacteriostat in your water reervoir.

These came up suggested as a substitute for the discontinued (3 months after I bought it) Honeywell humidifier HEV600 series, filter T, and they aren't quite up to par. First of all, they aren't the same size, so you have to cut them. Second, water does not wick up or evaporate as quickly with these filters, and I feel they bog the functionality of the humidifier down. I would rather pay the extra money for a fully functioning humidifier. I did not find these to be an equal substitute for the real Honeywell filter T, but if you don't mind the decreased humidity output, they do serve some functionality. I will be finishing out my usage of them over the summer, since humidity is pretty high this time of year anyway, but in winter these simply will not do.

2nd time I've ordered these. I nursed the first set through the entire winter season by immersing them in gallon of vinegar for an hour or two every month or so, then rinsing well with kitchen sprayer I then used a funnel to re-cycle the vinegar. One gallon lasted the year. The filter was pretty "beat up" by the end of the season, but still usable. I just ordered a refill set I'd have the unit ready to go for next season.

I live in CO which has minimum humidity so a humidifier is a must. These filters are great at wicking the water for maximum efficiency. My only problem is with my humidifier since it doesn't turn off when the tank is out of water. The filters don't work as well if allowed to go dry. You can fix this by taking them out and soaking them when refilling the humidifier but then they will fall apart much sooner requiring replacement with new filters.

As indicated by several other reviewers, these humidifier filters quickly dry up, get clogged with scale (despite using soft water and anti-scale treatment), and become very ineffective at dispersing water into the air. The filters dry up so much that it prevents the normal capillary action and water does not get saturated in the filter media thereby preventing the normal dissipation of water by the humidifier. I performed several informal tests over 6 weeks and went through three sets of pads. During the first two days of using a new filter, the humidifier is able to disperse 4 gallons of water per day. By middle of the week and until the filters get replaced, they barely disperse half a gallon of water each day. I also noticed that the filters are larger than usual and make for a tight fit in the humidifier. Because the media is "squeezed" in the humidifier, I suspect that prevents some air from passing through the filter media and perhaps leads to the premature hardening of the filter media. I never had this issue with the OEM filters.

these arrived in good time, good condition and no problems. were exactly what I expected. glad to get a pkg of 6 so will have lots on hand. I have 2 different styles of Vornado evaporative humidifiers but these wicks fit both of them. cant be without them in the winter. the store where I bought the machines does not seem to stock the right size of wicks anymore. glad to be able to purchase them this way.

These took longer than I expected to arrive, however, it could just be the time of year. I also wish they had been boxed, rather than shipped in an unprotected plastic bag. The filters themselves are fine and I will buy them again.

Was not quite the right size for our model but we cut it to size and now it fits perfectly