Boston fern (Nephrolepis exaltata)

Nephrolepis exaltata

Nephrolepis exaltata aka Boston fern is the best plant for removing Formaldehyde from the air and removed significantly more per hour than the rest of plants examined. Apart from Formaldehyde it can aslo remove xylene and toluene. It is an non toxic plant, so it’s baby and pet friendly.

It requires moisture and humidity to thrive, so the first thing you need to do is to make sure that it is in the right kind of environment. Boston fern needs a cool place with high humidity. If your house is dry add some extra humidity by setting your pant’s pot on a tray of pebbles filled with water. The best light conditions to provide is indirect sunlight, also filtered sunlight through net curtains works well too.

The Boston fern will grow fast in temperatures of 16-30°C (60- 86°F). No lower than 13ºC (55ºF).

Build a Low cost PM Monitor

ourairquality

Low cost and quite precise DIY Particulate Matter Monitor. This DIY device will allow to measure PMs, Temperature, Humidity and Barometric Pressure for less than US $30.

I am not going to describe the whole process of building the device because it is well explained by the author at ourairquality.org. You can find a ton of information about the sensors and the electronics on his article.

  • It uses the Plantower PMS5003 which is a low cost laser particle counter ∼US $18.5
  • ESP8266 Nodemcu is a WiFi enabled computer board US $3.2
  • BME280 is a Temperature, Humidity and Barometric Pressure Sensor US $4.9
  • DS3231 is a Precision RTC Clock Module Memory US $2

  • It is Micro USB Powered

 

For more info visit: https://ourairquality.org/index.php/build-an-air-quality-monitor/

Review: Vogmask

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One more time I had the opportunity of getting a half face mask this time by Vogmask and of course I couldn’t resist not writing a review on my blog.

As I have already mentioned in my preview article effectiveness and elegance are the key points of my evaluation.

Many people are spending a lot of time during the day travelling from one destination to an other on foot or by bike or by car/public transportation. There are 1.25 Billion Vehicles on World’s Roads right now and they increase steadily. (There is an estimation of 2 Billion Vehicles by 2035).

What kind of pollutants do we face everyday: Particulate matter (PM), Hydrocarbons (HC), Nitrogen oxides (NOx), Carbon monoxide (CO), Carbon dioxide (CO2), Sulfur dioxide (SO2) and other air pollutants/toxics such as Benzene, acetaldehyde, and 1,3-butadiene.

Characteristics

Vogmask offers the N99 respirators (Not oil resistant), with options of a carbon filter layer (C), and an exhale valve (V). I have the N99CV.  These respirators are made to seal tightly around the mouth and nose and they are made of material certified to block 99% of particles 0.3 μm or larger in diameter including PM2.5.

  • Outer layer Faceblank of non woven microfiber
  • Filter media of Nanofiber PP Filtering Textile middle layer
  • Filter layer of Active Carbon coconut shell derived charcoal bonded to textile 
  • Exhalation Valve of ABS Resin with silicone stopper
  • Nosebridge of coated aluminum wire
  • Trim and ear loops of latex-free spandex
  • Inner layer Faceblank (comfort inner layer closest to lips) of woven microfiber

Design

They have a huge collection of print designs which meet everyone’s taste. Of course all face masks are noticeable. The materials are soft to the touch and face. The mask doesn’t touch your lips and mouth.

Effectiveness

The exhale valve is quite big and helps a lot with the moist that may build while you are breathing, in my case I will rate the valve at 85% efficient. I have a beard and facial hair is enough to break the seal and let in particles and gases. They have a solution for that. The Head Strap Accessory which snaps onto the ear loops of the Vogmask for a tighter seal and more security. I have been wearing the mask during three weeks now while I am riding my bike or motorcycle and I have noticed that I don’t smell anymore some of the gasses that come out of the cars or buses.

The mask is CE Certified reusable which means that you can rinse it with water and liquid soap. Although it may work with the Nanofiber PP Filtering, I think the Active Charcoal filter won’t work as well as a new one, because a lot of the nano pores that trap gases will clog up by the impurities and minerals of the water.

It is designed to last up to 3 years but it is recommended to replaced it after 4 months when a sudden increase in inhalation resistance is noticeable. In this case the middle filtering layer is saturated with particles and the mask needs to be replaced.

Conclusions

All in all it doesn’t require extra effort to breathe with the mask and the exhale valve helps a lot with the moist. The maintenance is minimum but recommended after a while. Good filtration against street air pollutants.

Quick update: Cooking without extractor hood

This is what happens when you cook without extractor hood. In the graph below you can see a huge spike on the PM sensor, this is because my extractor hood in the kitchen has broken and I had to cook without it. Immediately the air quality went down.

The air quality monitor was 2 rooms away from the kitchen, so always ventilate the kitchen by using an extractor hood. Tip by closing the lid of the pot/pan you decrease dramatically the release of PMs into the atmosphere.

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4 Plants to reduce indoor Humidity

humidityplants

When indoor relative humidity is higher than RH:65% this will allow bacteria and mold to grow. You can always purchase a dehumidifier and it works like charm but it will cost you a lot on electricity, so plants come to the rescue. Some plants are capable of absorbing indoor humidity and use this kind of moist for their own good.

Tropical plants called epiphytes like Tillandsia, Boston Fern, English Ivy and Peace Lily are plants that get some or all their water from the air instead their roots.

Tillandsia: A plant that can survive without roots, so it can absorb water from the air.

English Ivy: It can remove the airborne mold typically found in humid areas.

Boston Fern: Thrives in more moist climates, so it will naturally absorb some of the humidity in your home.

Peace Lily: The least potent plant for humidity because it is a watered plant, but it will also absorb moisture from the air through its leaves.

A few plants won’t solve the problem of too much humidity in your house, but they can help and alleviate some. Please don’t over do it on the other hand, and try to find a balance between them.

Review: Nosk Nasal Filters

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I had the opportunity of getting the Nosk Nasal Filters and of course I couldn’t resist not writing a review about my personal thoughts and impressions.

As I have already mentioned in my preview article effectiveness and elegance are the key points of my evaluation.

Characteristics

It has been certified efficient at 100% for PM10 filtration, 96.3% for PM2.5 filtration and 96.1% for PM1.0 filtration. Each filter last up to 100 hours, it is made of SMS fabric (Spunbond/Meltblown/Spunbond) and the clip is made of Polyolefin Elastomers which is hipoalergic.

how_to_use4

Elegance

Yes it is elegant, you can wear it without people noticing it thanks to its discreet invisible design. It doesn’t produce heat or moist like a face mask, so it doesn’t make you sweat either. You can speak, eat or drink freely. Each time I use it I sneeze once or twice because it tickles my nasal hair but this is a normal reaction of the body.

Effectiveness

In my case it didn’t shield both nasal cavities well. It comes in one size only so it couldn’t fit well enough to shield the left or the right nasal cavity at the same time correctly, so pollutants could bypass the filter and enter in my respiratory system. Then as I had more filters available I shared them with some friends just to try and see if the filter could adjust on their nasal cavities better. Indeed the filters fit most of them perfectly. I would surely recommend this kind of filtration for pollen, dust and mold. As a result people who work in construction sites and need protection from dust mostly PM10 and then PM2.5 or people allergic to pollen during Spring time they will likely benefit from the Nasal Filter.

sss-infinite-realities

 

Conclusions

All in all it is an innovative product which will allow you to interact with your daily tasks without any problem and it will protect you from basic air pollutants. The company needs to come up with more sizes but you should give it a try as it is available in different packages of 2 or 6 or 10 or 20 filter plugs (More info at https://filtrosnosk.com). In case you purchase this kind of filtration remember to handle it always with clean hands and store it in its case because you don’t want germs in your nasal cavities.

Pollution Masks

allmasks

Cyclists, motorcyclist and pedestrians but even people inside their houses (depending where they live) get exposed to direct air pollutants like Hydrocarbons (HC), Nitrogen oxides (NOx), Particulate matter (PM1.0-PM2.5-PM10), Carbon monoxide (CO) and Sulfur dioxide (SO2) from the vehicles’exhaust fumes everyday.

The solutions can be limited. A half face filter mask for example is the only solution for those that move around the city. Two are the factors that will determinate if the mask is worth using it. Firstly if it is efficient enough to block all the harmful pollutants out of our lungs and secondly if it is elegant enough to use it in public.

Right now there are many masks in the market that offer these kinds of protection, for now I will list some on them below but later this year I will review some of them here on #seetheair blog and I will let you know if they are efficient and elegant for your everyday usage.

List:

In case there is someone who would like a review on a specific pollution mask please let me know below on the comments. Thank you

Improve the way you Breathe

breath lungs

Our lives dependent upon our breath but many people including myself don’t know how to breathe properly.

  • Clean fresh air is an important key for a better breath. There are hundreds of studies about the importance of fresh clean air. In cities with high air pollution, people struggle with asthma, infections and breathing difficulties and they are quite common issues. We need clean air for our health.
  • Be aware of each breath, which mean to breathe into your abdomen using deep, rhythmic belly breaths. Many people including myself are surface breathers, meaning that our inhalation of air is shallow and it isn’t even noticeable, as a result not efficient. Deep belly breathing calms the central nervous system right away. The breaths help in establishing the connection of our mind to our body.
  • Focus on your breath. Breathe in and breathe out. Notice your belly filling with fresh air, and exhale. Stay present. Knowingly sending the breath deep into your belly then fill up the lungs. Feel the air inside you. Experience the exchange of gases (O2-CO2) inside you, and witness the calming down of the body. That’s it, you did it. Now remember this steps each time you catch yourself breathing shallow and of course practice.

There are some apps for smartphones and smartwatches that can help and remind you to breathe properly. For example, Apple watchOS 3.0 includes an app with breathing techniques. Available Fall 2016 for free

waatchos breath

Search for a “breathe or meditation” app on iOS or Android store. You can find free and paid ones like:

Stop, Breathe & Think  |  Breath  |  Headspace  |  Calm

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Awair vs Awair

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I have had the opportunity to have two Awair devices for a short period of time because the old device had a defective PM sensor (that can happen with all electronic devices), so the company was kind enough to sent me a replacement unit, as a result I took this opportunity to compare the sensors between them except the PM sensor as the old one was defective before sent the old unit back to the company.

I took screenshots of the timelines of each sensor and placed them one on top of the other. This way it is very clear and easy to understand the correlation between the old unit and the new one.

sensorcomp.jpg

  • Temperature sensors: High correlation.
  • Humidity sensors: High correlation.
  • CO2 sensors: High correlation but offset by ∼70ppm.
  • VOC sensors: Good correlation (VOCs are measured in ppb (parts per billion) and then converted into index value which means that even a small change in the ppd value can affect the index result).

All in all both devices give the same readings, remember that I didn’t make the test inside a lab but in my house and this was a practical test.

 

Rooti CliMate Review

onthebeach

I have purchased a little environment tracker which tracks Humidity, UV light and Temperature. I wanted to write a review about it because I find it really cute cloud-shaped device which I can place it in any place I want and measure HUT and I think it worths its money ($25-$55) in my opinion.

Build

The device’s case is made of plastic and on the box it mentions that it is drip, slash and sweat resistant IPX4. However I wouldn’t mind paying more for an anodised aluminium case.

It comes with a Stand in case you want to place it on top of you night stand, table, bookcase, etc and with a Lanyard in case you want to carry it with you. It also has a nice physical feature which is a magnetic back, not enough strong to hold itself but if you own a small neodymium magnet you can combine them and use it on your fridge or placing it on your clothes like a wearable…

Design

As I mention before I find its cloud-shaped form really cute but it doesn’t make it really attractive to the general public or formal enough to wear it with you everywhere.

Energy

It works with a coin-sized Lithium battery CR2032 and it claims that can operate up to 6 months on normal usage. Although I would love if it had a small Solar panel on the front next to the UV sensor, infinity energy.

Sensors

Temperature: The temperature sensor is quite accurate but don’t expect high precision±2ºC. I have compared it with 3 more devices and they mostly coincide.

RH Humidity: It’s less accurate than the temperature sensor by ±5% based on my experiment, but it is Relative Humidity as its name says it is relative!

UV: A bit disappointed about it to be honest and I will explain why. I think the way they have place it on the device isn’t the optimal way to read always the correct UVI value from sun. You see sun’s rays hit the earth on an angle and the device must be on 90º angle with those rays if you want the device to tell you the highest value (highest=right value). One more thing that I don’t like is the frontal face because it can cast a shadow on the sensor and as a result no UVI reading.

zoomsensor2
UVI 4 by holding the device on the right angle outside.

App UI

screenshots

The iOS app that I have been using is super nice, but with some small bugs in the history tab. The app is divided into 4 Tabs. The first calculates the time you should be exposed on UV rays to avoid sun burns, the second is the History tab with Day-Week-Month overview of the HUT, the third tab is the main tab with all the current stats plus a little plant that tells you if it’s confortable or not and the last one is a social tab with a camera integration.

Connectivity

It uses Bluetooth 4.0 technology and it works with iOS 6 or newer devices and any Android 4.3 or newer.

parts

P.S The device is under the brands Adam Elements CliMate and Rooti CliMate.