The document describes the design and development of a room air purifier. It begins with an introduction explaining the increasing concern about indoor air pollution and how air purifiers work to filter polluted air. It then discusses identifying indoor air pollutants as a problem and reviews various literature on existing air purification technologies. The objectives are to design an air purifier that improves air quality and controls humidity while being attractive to users. The methodology, design, fabrication process involving different filters, and progress of the work are then outlined. Finally, the document provides references used in the review of existing purification methods.

1. “ Design and Development of Room Air Purifier
and Environment Improvement System”

2. CONTENTS
 Introduction
 Identification of problem
 Literature review
 Objectives
 Methodology
 Design and fabrication
 Progress of the work
 Refrences

3. INTRODUCTION
 There is an increasing concern about air pollution level both indoor and outdoor, Air
pollution has crossed all boundaries in 2021, WHO estimated that around 7 million
people die annually as result of air pollution. It also mean the air you breath in your
house is polluted.
 Air purifier contain 3layer filter with a centrifugal fan which suck the air & air passes
through the filters.
 these filters trap pollutant & clear air back into the rooms .Air purifiers are the method
that people use to purify the indoor air in polluted Location
 A device called an air purifier or air cleaner eliminates impurities from the air a in space
to enhance indoor air quality.

4. IDENTIFICATION OF PROBLEM
Air purifiers can refresh stale air, reducing the chances of health issues caused by indoor
pollutants, which can trigger respiratory infections, neurological problems, or aggravate
symptoms in asthma sufferers. Quality air purifiers eliminate several types of indoor air
pollutants, keeping us healthy.

5. LITERATURE REVIEW
REFRENCE MATERIAL CONCLUSION
Patil et al.[1] Water as air filter Water as filter also control humidity & reduces cost &
reaches 85% efficiency
Karale et al.[2] H20 as purifier & humidifier Water as purifier is economical & having more
environmentally sustainable quality & reaches about
85% of pure air quality.
Chouragada et al.[3] Developing a next generation filter Water purifier is a quit operation type purifier . It is
more efficient in winters when indoor air humidity is
about (10-20%).it is a low power consumption purifier
which is very easy to use
Jian Fang et al.[4] Different type of filters & their needed qualities. This paper provide a deep knowledge for choosing all
parts of purifier which gave efficient result. As result we
can find different steps and layers of filter.
Aditya Roy et al.[5] Comparison of filters this article talk about new filter technology named as
electrostatic smoke presipitator which having more
potential & low cost as compare to HEPA filter .

6. LITERATURE
REVIEW
REFRENCE MATERIAL CONCLUSION
Kujundzic et al.[6] UV light as Air filter Introduce a new technology of purifying air using uv light. The profit of
using uv light is that it also deals with bacteria and other harmful
germs.
Liu et al.[7] A Polyacrylenitrile as a air filter A (PAN) filter are essentially a nano filter that work on the principle of
particle adhesion.
Beeldense et al[8] Chemistry behind air purification Several photocatalysts like T1,O2 were also used in air filters for
purifying ambient air which is produced by vehicular emission they
plotted a graph between time and concentration of no emission.
Patel et al[9] Self cleaning filters A sinterd metal filter is a type of continuous filter which is made by
combining efficient and provide a good quality filtration.
Yoda et al [10] Effect of purification on air health successfully research on effect of purification on air purifier reduce
indoor PM 25 concentrated particles from room which directly effect to
human health and cause many diseases.

7. OBJECTIVES
To Design and develop a Room Air Purifier for people in areas with poor air quality with a focus on
aspects like functionality, user experience, and sustainability.
To design air purifiers that are attractive for users and that improve the air quality and control the
humidity of room.

8. METHODOLOG
Y
Collection of relevant data
Find out the scope of the further research
Reading & analyzing research paper
According to the scope preparing problem statement
Material selection
Prepare Filtration process
Prepare the hardware parts & equipments
Assembling of parts
Check working air purifier
Result & conclusion

9. DESIGN AND FABRICATION
An air purifier mainly consists of following parts .
ANTIBACTERIAL FILTER-Efficiently remove bacteria, viruses and molds in the air.
ACTIVATED CARBON FILTER-Absorbs and collects dust ,pet hair, allergens , smoke , fumes and
harmful gases.
HEPA FILTER-Capture 99.97% of airborne contaminants like dust , bacteria, fungi, viruses and
allergens.
CENTRIFUGAL FAN-A centrifugal fan consists of a small BLDC motor with ,metal fan blades. The fan
is usually attached to the case with steel screw.
SUN BOARDS- Sun boards are a very strong , light and easily cut sheet material .it is usually has three
layers, an inner layer of polystyrene foam and a white clay coated paper on the outside.

10. CONSTRUCTIO
N
(d) Three dimensional map

11. FILTERS USED
Several different process of varying effectiveness can be used to purify air. The most important
component of an air purifier are its air filters. Most air filters and air cleaner contains at least one air
filter. Some used multiple air filters working together to produce the best result . The easiest way to
find the right air purifier for you is by looking for air purifier that have specific types of filters . Hence
some types of filter used in this purifier are given below.
PRE FILTER
As pre filter captured the largest particles before they reach the more expensive HEPA filters. Here
as pre filter we can use the mixture of Orange peel powder , Neem leaf powder etc which remove
most of large particles like dandur and dust ,not tiny once like pollen and microbes.

12. ACTIVATED CHARCOAL
It increase the efficiency of the filtering system . this elements work to absorbs smoke gases
chemical and odors that are present in the air. Activated carbon neutralize odors and trap harmful
chemicals and gases in its pores to provide relief from activities like secondhand smoke , off
gashing , harmful fumes produced from renovation.
HEPA FILTER
The HEPA filters a very fine fiber like material that has been folded back and forth to create a
shape of accordion . This accordion creates a maze of randomly arranged fiber and create a very
large surface for air to be pushed through by the air purifier fan . HEPA filter must have meet a
standard of trapping at least 99.97% of all particles larger than 0.3 microns.

13. ADHESIVE TAPES-Adhesive tapes of a combination of material and a adhesive film and
used to bond or join objects together instead of using fasteners , screw , or welding.
SUPER GLUE-Super glue is a general name for a family of fast acting adhesive with
industrial ,medical and household uses
CALCIUM CLORIDE-.It is used as absorber, and absorb moisture from the air effectively
and controls humidity.

14. PROGRESS OF THE WORK
 Literature Review : completed
 Objectives: completed
 Methodology: completed
 Design and fabrication:completed

15. REFERENCES
Nikam, J., Chavan, N., Patil, A., Pisal, N.S. and Salunkhe, R., Design and Development of
Silent Air Purifier and Humidifier Using Water Filter.
Amruta Ramesh Sarwade , Dr. Sachin. R. Karale Department of Mechanical Engineering, G
H Raisoni Amravati University , Maharashtra ,India
Santosh N. Chouragade1 , Mukesh A. Bisen2 , Prashant S. Karemore3 , Umesh B. Thote4 ,
Sharayu.WasuDesign & Fabrication of Air Purifier & Humidifier with Water as a Filtering
Medium
Fang, J. and Zhu, Z., 2019, July. Material analysis and design of air purifier. In IOP
conference series: materials science and engineering (Vol. 585, No. 1, p. 012107). IOP
Publishing.
Aditya, R., 2018. A review of general and modern methods of air purification. Journal of
Thermal Engineering, 5(2), pp.22-28.

16.  Rakesh Patel, Devarshi Shah, Bhupendra G. Prajapti and Manisha Patel Dept. of Pharmaceutics
& Pharmaceutical Technology, S. K. Patel College of Pharmaceutical Education & Research,
Ganpat University, Ganpat Vidyanagar, Kherva, Mehsana-Gozaria Highway, Pin-382711,
Mehsana, Gujarat, India
 Yoda, Y., Tamura, K., Adachi, S., Otani, N., Nakayama, S.F. and Shima, M., 2020. Effects of the
use of air purifier on indoor environment and respiratory system among healthy
adults. International journal of environmental research and public health, 17(10), p.3687.
REFRENCES

17. Thank you