@suedonim75 . Yes, N95 masks are FIT TESTED. They are also called respirators. Surgical masks are not Fit Tested N95 masks are also called respirator masks. They come in different sizes. See link. N95 masks and some surgical masks are built with a wire along one edge. View pics of the public wearing such masks. Most of the time masks are not worn properly as the nose bridge wire is left alone. It should be bent to conform to the nose bridge. A properly fitted N95 mask aka respirator is uncomfortable to wear, as humidity builds-up, due to exhalation. The N95s with a front valve are more comfortable to wear for longer time periods, but the studies I've read suggest that the front valve might not be as effective/safe against tiny viral particles, as opposed to bigger microbes like bacteria and chemicals. https://www.moldex.com/wp-content/uploads/N95-Respirator-Protection-for-Pandemic-Influenza.pdf

Forgot to mention, when this was redone, the piping was done outside the walls in copper. When I redo them, I'll be putting it into the walls so I'll likely be redoing this with PEX A. That's the reason I feel as though I should be branching off the 3/4 with a 3/4 then feeding whatever fixtures with it's appropriate size. I'm certainly not the expert and don't want to seem argumentative but every other site I've read on says that the 1/2 branch that feeds multiple 1/2 bathrooms is too small. Also the master bath shower will have two shower heads.

Tight well insulated house then it doesn't really matter. A minisplit is basically the supply and return in the same place. Sure there are movable fins to distribute air a little bit but those things are small. And most people's complaints about mini's are aesthetics not air distribution or temperature stratification. The likelihood is that your new build will be tighter and better insulated than any house you have ever lived in (unless you move geographically a big amount). You will feel some warmth if you are standing in front of a west facing window and that can be reduced when the a/c is running if the vent is near that window. To an extent, the opposite is true at night in the winter. But then you really don't want air blowing on you to any force anyway when it is cold. Outside of that, there shouldn't be enough heat loss or gain to matter. I notice that a lot of people don't like vents blowing on them at night so not placing over the bed would be a consideration. We run a ceiling fan even in the winter so the vent blowing isn't a consideration for us. And that has nothing to do with distributing temperature - it is just a desire for some cooling and somewhat of a habit living in the south.

Thanks for the update, chisue. Sorry to hear the rx is messing with your skin. Is it drying out you skin? How many days does the Rx treatment messed you up? Do you feel blah for days after? Thirty pounds less wouldn’t seem like much extra skin, but to you, it might feel awful or uncomfortable. Yes, carolb, some people who lose 100 or more pounds can have annoyingly sagging skin. For those who can get surgery, that must be an enormous relief. Wishing you the best, chisue and it must be so exhausting nd difficult to cope with the illness AND the treatment. Medical research is always in a race to find effective and better treatments. Hold on. I hope you have a good support system — perhaps others w MM or similar, family and friends. And I hope you can continue with your interests and activities. Sometimes I come across articles on various conditions like MM. You likely are on top of new info, but if you’d like, I will try to post links to any I come across. The costs of being ill can be immense. I recently wanted to treat itchy milia and the doc wrote a prescription for something called TRETINOIN. The pharmacy said it needed approval from inssurer. Cost without insurance is about $186. The cheapy insurance said my CO-PAY would be $145. Yikes. I’ve never used it, don’t know how effective it will be or even how long that supply of ? ounces would last. I might need to invest in a salt or sand blaster, or brillo pads. Would it be worth a trip to Mexico or Canada? LOL