Respironics Fine Filter ???

Call me stupid, but how is one supposed to install the Respironics throw away fine filter. I've looked at the instructions and the filters but still don't understand how to do this thing. Does the replaceable filter install in place of the washable filter or along with it? Do you have to crumple the filter to get it to fit? It seems too big. I'm missing something but don't know quite what.

BTW, my machine is the Respironics Auto-BiPAP, but I assume the filters are the same across the family of Respironics machines having the same body style.

Regards,
Bill

I'm glad I'm not the only one.

Per the instructions in the User Manual under routine maintenance:

2.b. Place the white ultra-fine filter under the clean pollen filter.

I didn't have to crumble mine. I put it in just like this:



and then put in the foam filter and replace the filter cap.

I do need to force (crumple) mine a bit to fit in the area provided. Once you have it in the crimped edges will bend a little to make for a snug (air tight) fit.

Per the instructions in the User Manual under routine maintenance:

2.b. Place the white ultra-fine filter under the clean pollen filter.

I think I read that part, which was about as clear as muck . . . OK, so under, in this case, means that the fine filter is vertical just like the washable filter and is installed before the washable filter is installed, correct?

Bill (still dense, despite Positive Air Pressure)

Yes, with tab at the top. and yes it does appear to be a little big but it still fits.

I have the auto not the bipap. My filters go in horizontally (as per the above picture). I gather the filters on the bipap go in vertically. (You learn something new every day!)

Yes, the fine filter is installed before the washable filter.

I have the auto not the bipap. My filters go in horizontally (as per the above picture). I gather the filters on the bipap go in vertically.

OK, so the instructions may be written for an earlier model machine. I'm glad I asked the question. The washable filter is installed vertically in my machine. Since there's no room to install the fine filter horizontally, I think I'll follow Goofproof's and wading through the muck's recommendations and just stuff the filter into the available space.

Thanks,
Bill

Just found this on cpap.com----

In what order do I insert the filters?

If both the foam and paper filters are used, the paper filter is inserted first with the smooth side against the machine and the soft, fuzzy side facing out. The tab is folded out for easy removal. The foam filter is placed on the outside to remove the larger dirt particles first.

I had no idea cpap.com had so much information in their ANSWERS section. Here's the link to the part on filters:
cpap.com Filters

neversleeps wrote:Just found this on cpap.com----

https://www.cpap.com/cpap-faq/Filters.html#FGID-94

I had no idea cpap.com had so much information in their ANSWERS section.

NS,

You've got that right!!!!

You can't find this kind of good info on the ASAA site.

Being a mechanic, I just paid attention to how the old filters were positioned and reversed the order on reinstall.

I still haven't got around to building the pressure meter. I had a gage to sync four carbs on a motorcycle but I lost in in the house moving.

wading thru the muck wrote:NS,

You've got that right!!!!

You can't find this kind of good info on the ASAA site.

Good heavens, Wader. I'm afraid I can't wink back. What on earth does this have to do with the ASAA website? We get it already! You don't like the ASAA website. You never go there, you never post there, you never join chat sessions there. You've made your feelings clear time and time again even when, as in this case, it has absolutely nothing to do with the topic at hand. Good grief, we're talking about filters!!!!!

neversleeps wrote:

wading thru the muck wrote:NS,

You've got that right!!!!

You can't find this kind of good info on the ASAA site.

Good heavens, Wader. I'm afraid I can't wink back. What on earth does this have to do with the ASAA website? We get it already! You don't like the ASAA website. You never go there, you never post there, you never join chat sessions there. You've made your feelings clear time and time again even when, as in this case, it has absolutely nothing to do with the topic at hand. Good grief, we're talking about filters!!!!!

Hey NS,

Why does it bother you so much when I make comparisons to that other site??? Folks are making comparisons regarding machines and masks all the time. I bet there are some who have affirmed or criticized a particular machine or mask hundreds of times more than I have ever mentioned the ASAA.

I guess you actually DON'T get it. I am going to make the comparison between the two sites... or this site and any other site every time I have an opportunity.

We are on the cpaptalk forum! Comments pointing out it's advantages over other cpap forums seem to me to be ALWAYS on topic.

Goofproof wrote:Being a mechanic, I just paid attention to how the old filters were positioned and reversed the order on reinstall.

I still haven't got around to building the pressure meter. I had a gage to sync four carbs on a motorcycle but I lost in in the house moving.

Reminds me of my old days and syncing the downdraft carbs on my MGBs (4 of them).... ahhhhh... a walk down Memory Lane.....


refreshing...

thanks!

yardbird wrote:

Goofproof wrote:Being a mechanic, I just paid attention to how the old filters were positioned and reversed the order on reinstall.

I still haven't got around to building the pressure meter. I had a gage to sync four carbs on a motorcycle but I lost in in the house moving.

Reminds me of my old days and syncing the downdraft carbs on my MGBs (4 of them).... ahhhhh... a walk down Memory Lane.....


refreshing...

thanks!

Corvairs and Goldwings and More!

Hey Yardbird and Goofproof,

Be careful or neversleeps is going to chide you for straying from "the topic at hand"

If the ASAA doesn't qualify as relevant, I'm sure synchronizing carburetors is off limits.